Except as otherwise noted in this Section, every dwelling unit shall contain
within its walls in safe and sanitary working condition:

A. A toilet located in a room that is separate from the habitable rooms
and that allows privacy;

B. A lavatory basin; and

C. A bathtub or shower located in a room that allows privacy.

In hotels and apartment houses where private toilets, lavatories, or baths
are not provided, there shall be on each floor at least one toilet, one
lavatory, and one bathtub or shower each provided at the rate of one for every
twelve residents or fraction of twelve residents. Required toilets, bathtubs,
and showers shall be in a room, or rooms, that allow privacy.